iMac Intel 21.5" EMC 2389 Power Supply Replacement
iMac Intel 21.5" EMC 2389 Power Supply Replacement
iMac Intel 21.5" EMC 2389 Power Supply Replacement Replace the power supply in your iMac Intel 21.5" EMC 2389.
Scritto Da: Andrew Bookholt
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Pagina 1 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
INTRODUZIONE Use this guide to replace your iMac's power supply.
STRUMENTI:
COMPONENTI:
Heavy-Duty Suction Cups (Pair) (1)
iMac 21.5" Power Supply (1)
T10 Torx Screwdriver (1)
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iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 1 — Glass Panel
Before beginning, unplug your iMac and lay it on a soft surface as shown.
Stick a suction cup near each of the two top corners of the glass panel.
To attach the suction cups we sell, first position the suction cup with the movable handle parallel to the face of the glass panel. While lightly holding the suction cup against the glass, raise the movable handle until it is parallel with the other handle.
If your suction cups refuse to stick, try cleaning both the glass panel and the suction cup with a mild solvent.
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iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 2
Gently lift the glass panel perpendicular to the face of the LCD enough to clear the steel mounting pins attached along the underside of the top edge of the glass panel.
Pull the glass panel away from the lower edge of the iMac and carefully set it aside.
During reinstallation, be sure to meticulously clean the inside of the glass panel and the face of the LCD as any dust or fingerprints trapped inside will be annoyingly visible when the machine is turned on.
Passo 3 — Display
Remove the eight 8 mm T10 Torx screws securing the display to the outer case.
The last two pictures are detail shots of each side of the display. © iFixit — CC BY-NC-SA
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Pagina 4 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 4
Slightly lift the top edge of the display out of the outer case.
Do not lift it too much. There are several cables attaching the display to the logic board.
Passo 5
Pull the vertical sync cable connector out of its socket on the LED driver board near the top left corner of your iMac.
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iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 6
Rotate the display out of the outer case enough to disconnect the LED backlight power cable from the LED driver board.
Disconnect the LED backlight power cable by depressing the locking mechanism while pulling the connector away from its socket (toward the bottom edge of the iMac).
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iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 7
The display data cable plug has a wire lock. Disengage the plug's lock by rotating the plastic tab so that it points upward. (It is not a pull tab.)
Pull the display data cable straight out of its socket on the logic board.
Do not lift up on the display data cable, as its socket is very fragile. Pull the cable parallel to the face of the logic board.
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Pagina 7 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 8
Disconnect the LCD thermal sensor cable connector from its socket on the logic board.
If your fan is spinning full speed after completion, check this connection or the hard drive's thermal sensor cable.
Passo 9
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Carefully pull the display toward the top edge of your iMac and lift it out of the outer case, minding any cables that may get caught.
Pagina 8 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 10 — Power Supply
The next few steps bring your hands close to the exposed face of the power supply. To avoid a high voltage shock from the many large capacitors attached to the board, do not touch the face of the power supply.
Remove the following four screws securing the power supply to the outer case:
One 9.3 mm T10 coarse-threaded screw
One 25 mm T10 coarse-threaded screw
Two 22 mm T10 fine-threaded screws
Passo 11
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Pull the upper right and lower left corners of the power supply away from the rear case to dislodge the mounting posts attached to the power supply's corners.
Pagina 9 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 12
Carefully lift the power supply out of the outer case and rotate it to expose the cable lock as shown, minding the DC-Out and AC-In cables still attaching it to the iMac.
Disconnect the DC-Out cable by depressing the locking mechanism on the connector while you pull the connector away from its socket on the power supply.
Once the locking mechanism has cleared the socket, pull the DC-In connector away from the power supply.
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Pagina 10 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 13
Disconnect the AC-In cable by depressing the locking mechanism while pulling the connector away from its socket.
Remove the power supply from the outer case.
To reassemble your device, follow these instructions in reverse order. Questo documento è stato generato l'ultima volta su 2017-11-03 11:38:55 AM.
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Pagina 11 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement Replace the power supply in your iMac Intel 21.5" EMC 2389.
Scritto Da: Andrew Bookholt
© iFixit — CC BY-NC-SA
it.iFixit.com
Pagina 1 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
INTRODUZIONE Use this guide to replace your iMac's power supply.
STRUMENTI:
COMPONENTI:
Heavy-Duty Suction Cups (Pair) (1)
iMac 21.5" Power Supply (1)
T10 Torx Screwdriver (1)
© iFixit — CC BY-NC-SA
it.iFixit.com
Pagina 2 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 1 — Glass Panel
Before beginning, unplug your iMac and lay it on a soft surface as shown.
Stick a suction cup near each of the two top corners of the glass panel.
To attach the suction cups we sell, first position the suction cup with the movable handle parallel to the face of the glass panel. While lightly holding the suction cup against the glass, raise the movable handle until it is parallel with the other handle.
If your suction cups refuse to stick, try cleaning both the glass panel and the suction cup with a mild solvent.
© iFixit — CC BY-NC-SA
it.iFixit.com
Pagina 3 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 2
Gently lift the glass panel perpendicular to the face of the LCD enough to clear the steel mounting pins attached along the underside of the top edge of the glass panel.
Pull the glass panel away from the lower edge of the iMac and carefully set it aside.
During reinstallation, be sure to meticulously clean the inside of the glass panel and the face of the LCD as any dust or fingerprints trapped inside will be annoyingly visible when the machine is turned on.
Passo 3 — Display
Remove the eight 8 mm T10 Torx screws securing the display to the outer case.
The last two pictures are detail shots of each side of the display. © iFixit — CC BY-NC-SA
it.iFixit.com
Pagina 4 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 4
Slightly lift the top edge of the display out of the outer case.
Do not lift it too much. There are several cables attaching the display to the logic board.
Passo 5
Pull the vertical sync cable connector out of its socket on the LED driver board near the top left corner of your iMac.
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Pagina 5 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 6
Rotate the display out of the outer case enough to disconnect the LED backlight power cable from the LED driver board.
Disconnect the LED backlight power cable by depressing the locking mechanism while pulling the connector away from its socket (toward the bottom edge of the iMac).
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Pagina 6 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 7
The display data cable plug has a wire lock. Disengage the plug's lock by rotating the plastic tab so that it points upward. (It is not a pull tab.)
Pull the display data cable straight out of its socket on the logic board.
Do not lift up on the display data cable, as its socket is very fragile. Pull the cable parallel to the face of the logic board.
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Pagina 7 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 8
Disconnect the LCD thermal sensor cable connector from its socket on the logic board.
If your fan is spinning full speed after completion, check this connection or the hard drive's thermal sensor cable.
Passo 9
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Carefully pull the display toward the top edge of your iMac and lift it out of the outer case, minding any cables that may get caught.
Pagina 8 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 10 — Power Supply
The next few steps bring your hands close to the exposed face of the power supply. To avoid a high voltage shock from the many large capacitors attached to the board, do not touch the face of the power supply.
Remove the following four screws securing the power supply to the outer case:
One 9.3 mm T10 coarse-threaded screw
One 25 mm T10 coarse-threaded screw
Two 22 mm T10 fine-threaded screws
Passo 11
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Pull the upper right and lower left corners of the power supply away from the rear case to dislodge the mounting posts attached to the power supply's corners.
Pagina 9 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 12
Carefully lift the power supply out of the outer case and rotate it to expose the cable lock as shown, minding the DC-Out and AC-In cables still attaching it to the iMac.
Disconnect the DC-Out cable by depressing the locking mechanism on the connector while you pull the connector away from its socket on the power supply.
Once the locking mechanism has cleared the socket, pull the DC-In connector away from the power supply.
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Pagina 10 di 11
iMac Intel 21.5" EMC 2389 Power Supply Replacement
Passo 13
Disconnect the AC-In cable by depressing the locking mechanism while pulling the connector away from its socket.
Remove the power supply from the outer case.
To reassemble your device, follow these instructions in reverse order. Questo documento è stato generato l'ultima volta su 2017-11-03 11:38:55 AM.
© iFixit — CC BY-NC-SA
it.iFixit.com
Pagina 11 di 11
